Improvement in processes of producing colored pictures upon linen or other material



UNITED- STATES OF VAN BUREN, ARK.

To all whom it may concern:

Be it known that I, JOHANNES SoHUH- MACHER, of Roemische Posel,Soernewitz bei Meissen, Koenigr Sachsen, Germany, have invented a newand Improved Process for Producing Colored Photographs on Linen or otherMaterial, of which the following'is a specification.

My invention relates to the production of the photograph upon paper orcard-board, the painting or coloring of the picture, and the transfer ofthe same to a linen, metal, or other surface to make the permanentpicture.

f To produce a picture upon linen the process .I is as follows: I firstprepare the following solutions:

I No.1solution: Seven grams (108.08 grains) of distilled water; eightgrams (123.52 grains) of nitrate of silver; fifty grams (1 ounce 4 idrains 52 grains) absolute alcohol.

( No. 2 solution: Thirty grams (7 drams 43.20

( grains) absolute alcohol; two grams (30.88

. grains) chloride of calcium.

No. 3 solution: Thirty grams (7 drams 43.20 grains) absolute alcohol;two grams (30.88

'ains) citric acid.

I then add to solution No. 1 gradually, and haking constantly whilemixing, fifteen ounces, one dram, and 27.68 grains (four hundred andseventy-twograms) of ordinary collodion. To this mixture solution No. 2is then added, drop by drop, under constant shaking, after which No. 3solution is added in the same in preparing the paper.

The proportions above given are preferred, I but may be varied.

I next take ordinary chalk-paper and cover I it with a strong solutionof gelatine, (1.25.) I When dry thegelatine coating is to be coveredwith a film of the'mixture or silver collodiou above described. On thepaper thus prepared a photographic impression is printed from a negativein the usual manner. The photographic picture is then washed in theordinary manner, and colored in a bath prepared as follows A In one andahalf liters of distilled water manner. This mixture is now ready foruse PATENT OFFICE.

JOHANNES SGHUHMAOHER, OF ROEMISOEIE POSEL, SOERNEWITZ BEI MEISSEN,KOENIGR SAOHSEN, GERMANY, ASSIGNOR TO LOUIS GRAF,

IMPROVEMENT IN PROCESSES OF PRODUCING COLORED PICTURES UPON LINEN OROTHER MATERIAL.

Specification forming part of Letters Patent No. 220,435, dated October7, 1879; application filed May 10, 1879.

two grains of chloride of gold are dissolved. In the same quantity ofdistilled water forty grams of rhodanide of ammonium are separatelydissolved, and these two solutions are then mixed under constantstirring.

The picture is fixed by a bath consisting of hyposulphite of sodium anddistilled water,

( After washing, the picture is dried and varnished, and the surfacepainted with oil-colors. The color should be applied so as to sketch thefigures merely, for the reason that the photograph itself gives thedetails and modulations of the picture. After drying, the picture iscovered with French retouching-varnish, and pasted on the linen with thecolored side next to the linen surface.

The adhesive medium may be variously composed, but theretouching-varnish will answer.

The picture, as will be understood, is now inclosed between the paperand linen. The paper is to be removed by soaking and washing in warmwater, and the picture will then appear in a finished state upon thelinen.

For transferring the picture to tin, wood, glass, or other material,some additions may be required, according to the nature of the surface.If the surface be of dark color-as, for instance, a black varnishedsalver-the photograph, after painting, will be covered with a coat ofwhite paint to neutralize the effects of the dark background. When thewhite paint is dry it is then to be coated with some adhesive varnish,and when that is nearly dry, but still adhesive, the face of the pictureis to be applied to the metal surface. When the varnish is completelydry the paper and gelatine are to be washed off with lukewarm water.

To protect and bring out the colors of the picture, its surface and thearticle decorated should be varnished; but no alcohol varnish can beused for fear of dissolving the film of collodion. The picture may alsobe burned into the tin by a temperature not exceeding 150 Raumur.

When treated in this manner the photopictures upon linen or othermaterial, which consists in first washing with a solution of gelatinethe surface that is to receive the picture, then flowing it with thecollodion mixture described, and printing thereon from the negative,then finishing in the usual manner, then coloring and applying adhesivevarnish, and then transferring the collodion picture film, as set forth.

J OHANN ES SOHUHMAOHER.

Witnesses:

KARL GOTTLOB GKRGER, GUSTAV KOCH.

